Document zoxw2eOBp6dG0xa0VZJKvjXjm

Heating Systems Thrush Pressure Relief H. A. Thrush & Company Makers of Thrush System Factory and Offices Peru, Ind. Thrush Damper Regulator Thrush System comprises equipment to be added to any unregulated gravity hot water heating plant to make it a "Closed Systemoperating under slight added pressure and with automatic control of dampers. Thrush Differential Pressure Relief Valve A large flexible diaphragm which places a thrust against the Valve member making it certain that the Valve will open. Valve seat is at all times submerged in water, won't corrode be cause it has no contact with atmosphere. Dirt and sediment will not collect at the valve seat. Design is such that heavier solids fall away from seat. Regu larly set to open* at 26 lb. pressure for 1,2 and 3 story buildings. For higher build ings. adjustments made at factory. Non-adjustable and not easily tampered Fig. I with. No small restricted openings. Fig. 4 Thrush Thermometer tiand Special Gauge furnished with 51 ?Thrush System simplify operation. Fig. 6 Benefits of Thrush System of Hot Water Heating Thrush Pressure System actually in creases rate of heat transmission,--faster circulation and hotter radiators. Therefore lower water temperatures may be carried. Installation is easy, requiring but 6 ft. of %/i in. pipe and eight fittings. A further reduction of pipe sizes makes for lower cost and higher efficiency. Thrush Automatic Temperature Damper Regulator Y Fig. s Its operation depends upon the temperature change of the water circulating through the heating system and not upon pressure. Maintains different water tempera tures by simple adjustment of sliding weights on lever. Multiple disc thermostat sets in dry well permit ting easy inspection. A fuel saver. Easily connected with one short nipple as shown in Fig. 6. Thrush Pressure Tank Fig. S Thrush Pressure Tank Serves two purposes--conserves hot water and returns it to system --and being closed to the air, it maintains pressure on the system by compression and expansion of the air in the tank. Thrush tanks are made of copper bearing steel, welded and tested, coated with enamel. Connect as shown in Fig. 6. DATA AND SPECIFICATIONS , Class "A" Equipment Consists of Thrush Automatic Temperature Damper Regulator, Differential Pressure Relief, Air Tight Pressure Tank, Special Gauge and Thermometer. Class "B" Equipment Consists of Thrush Differential Pressure Relief, Air Tight Pressure Tank, Special Gauge and Thermometer. SIZES Size No. 0 up to 350 sq. ft.' of radiation Size No. 1 up to 750 sq. ft. of radiation Size No. 2 up to 1250 sq. ft. of radiation Size No. 3 up to 2000 sq. ft. of radiation For larger job use additional pressure tanks of proper capacity 676 Instruments, Recording Consolidated Ashcroft Hancock Co., Inc. American Schaeffer & Budenberg Division 338 Berry Street Brooklyn, N.Y. Branches in Principal Cities Manufacturers of Indicating and Recording Gauges; Gauge Testers; "U" Gauges; Draft Gauges; Indicating and Recording Thermometers; Tachometers; Dial Thermometers: Pressure and Temperature Controllers; Electric Temperature Controllers: Pop Safety and Water Relief Valves; Steam Traps; Engine Indicators; Counters; Absolute Pressure Gauges. Also manufacturers of Locomotive and Engine Room Clocks; BarometeisMercury Column Gauges; Steam Whistles; Hydraulagraphs; Gauge Boards. American Quality Gauges American Air Duct Thermometer American Qual Designed especially for ity Gauges are made in all sizes from 2M to 12 in., for pressures from 10 to 30.000 lb. and also for vacuum. Cases are cast iron or cast brass. The movements are Heavy Duty and all bearings are Monel Metal. Write for Catalog No. A-59. For Mercury Pressure and Vacuum Gauges, "U" Gauges, Draft Gauges and Mercurial Barometers, write for Catalog No. B-59. both warm and cold air ducts. Fitted with polished brass or nickel plated 41V" shaped case, glass front. Furnished with 9-in. or 12-in. scale graduated 0-160 F. Write for Catalog F-59. American Dial Thermometers American Dial (mercury- filled) Indicating Thermome American Recording Gauges American Re cording Gauges are made for all pres sures from 15 in. of water to 10.000 lb. and for vacuum. They are made in o'ne size only to accommodate a 10 in. chart, having an effec tive scale width of 3% in. The case is Die Ca9t with a dull black hardrubber finish and with either bottom or back connection. The pen-arm is made of non-corrosive Monel Metal and is of the inverted type. Operating instructions are lithographed on the chart plate so that they cannot be lost. Especially designed Seth Thomas clocks are.used, and all customary time periods can be furnished. American Recording Gauges are equipped with the Time Punch which virtually makes each instru ment a time clock, since a hole is punched in the chart whenever a. reading is taken. Write for Catalog E-59. American Recording Thermometers. American Re ter has the accuracy of the standard glass tube ther mometer and the reading convenience of a dial face. Entire working mechanism is made of steel, meaning long life. Standard size of dial 6 and 12 in. Furnished with either rigid connection or flexible capillary steel tubing up to 200 ft. long. Made for any temperature range from minus 40 to plus 1000 F. Write for Catalog G-59. American Automatic Controllers A complete line of American Controllers for automatically controlling pressure, vacuum; temperature, condensation, hu midity liquid levels, timing of processes, control of dampers, etc. Write for Catalog R-59. cording Thermome- ters are made for . American Pop Safety and recording all tempera Water Relief Valves tures from minus 40 to plus 1000 F. or equiva Safety Valves of lent C, and with very brass and iron for flexible connecting tub ing up to 200 ft. Made in one .size only to ac any set pressure up to 300 lb., and of commodate 10 in. chart, cast steel, with out with any effective scale width of 3H The case is the same as for the American Re cording Gauge, so that all instruments are uniform side spring up to 400 lb. Relief Valves of bronze in appearance when mounted on Gauge Boards. - and iron for pres American Indicating Gauges and Dial Thermome-; ters are also furnished in same case. Write for Catalog H-59. sures up to 10,000 lb. Write for Catalogs U-59 and V-59. 677